WO2024175634A1 - Kommunikations-vorrichtung - Google Patents
Kommunikations-vorrichtung Download PDFInfo
- Publication number
- WO2024175634A1 WO2024175634A1 PCT/EP2024/054369 EP2024054369W WO2024175634A1 WO 2024175634 A1 WO2024175634 A1 WO 2024175634A1 EP 2024054369 W EP2024054369 W EP 2024054369W WO 2024175634 A1 WO2024175634 A1 WO 2024175634A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- field
- field antenna
- antenna
- vehicle
- connecting element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
- H04B5/263—Multiple coils at either side
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/43—Antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
Definitions
- the invention relates to a device having the features of the independent device claim, an access system having the features of the independent system claim and a vehicle having the features of the independent vehicle claim.
- the door handle on the vehicle is often used to accommodate at least part of the electrical device for contactless data transmission and/or approach by a user.
- An emergency release in the form of a mechanical locking cylinder is also often provided in the area of the door handle in order to provide access to the interior of the vehicle in the event of a power failure.
- an external ID transmitter was usually used to operate the access system contactlessly, with the ID transmitter exchanging data wirelessly with at least one electrical device.
- the user's cell phone in the form of a mobile phone, is increasingly being used to take on the tasks of the ID transmitter.
- the trend in vehicles is also moving towards e-mobility, so that the vehicles have larger electrical energy storage units.
- the door handles in vehicles are partly being replaced by purely electric access systems for aerodynamic reasons.
- the object of the invention is to achieve a particularly energy-saving device for contactless data transmission.
- the accommodation of the device on the vehicle must also be as flexible as possible in order to ensure good data transmission between the device and the mobile phone.
- a device for contactless near-field data transmission preferably for a vehicle, comprising:
- the near-field antenna is structurally designed separately from the near-field front end, with at least one wired connection line between the near-field front end and the near-field antenna being provided as an (electrical) connection element, and the near-field antenna forming a near-field antenna unit with the connection element, with the near-field front end having at least one (analog and/or digital) antenna tuner for adaptation to the near-field antenna unit.
- the structural separation of the near-field antenna from the near-field front end makes it possible for the near-field antenna to be arranged in areas of the vehicle that would otherwise not be suitable for an entire near-field communication device because there is simply not enough space. In addition, the entire device would possibly be unnecessarily exposed to external interference such as moisture, electromagnetic fields, etc.
- the device according to the invention can be used in a particularly flexible way on the vehicle.
- the existing near-field front end is designed in such a way that electrical and electromagnetic interference introduced by the near-field antenna and/or the connecting element can be compensated.
- an antenna tuner according to the publication EP 3 001 561 B1 can be used, which is also optimized with regard to the layout of the circuit board, as described below.
- Near-field communication technology is particularly susceptible to interference from external influences, so that the existing near-field antenna must always be tuned by the antenna tuner in order to enable interference-free and flawless communication.
- the circuit of the antenna tuner must always be individually adapted and built using electronic components. In other words, for every change to the near-field antenna and the connecting element, the antenna tuner must be adapted separately. This makes series production of the device very difficult, for example, if a change in the length of the connecting element is required. and/or makes geometric changes to the near-field antenna, as the antenna tuner must again be adjusted by using modified components.
- the antenna tuner can therefore be advantageous for the antenna tuner to have at least one matching circuit and/or a filter circuit in order to achieve an adjustment to the existing near-field antenna unit. Due to the basic structure of the antenna tuner with the matching circuit and/or a filter circuit, this can be individually but particularly easily adjusted to the existing near-field antenna with the existing connecting element.
- the filter circuit has at least a first filter arrangement in order to operate the near-field front end in a single mode.
- This structure of the filter circuit is particularly simple and can therefore be implemented in a space-saving manner.
- the filter circuit has at least a first and second filter arrangement in order to operate the near-field front end in a differential mode, wherein preferably the first and second filter arrangement form an (electrically) symmetrical filter circuit, or wherein preferably the first and second filter arrangement form an asymmetrical filter circuit.
- the connecting element has at least two wired connecting lines between the near-field front end and the (exactly "1") near-field antenna.
- This design makes sense from a technical point of view, especially in differential mode.
- a plug can be provided at one end of the connecting lines for detachable contact with the near-field front end or the near-field antenna.
- one plug can also be provided for each end of the connecting lines for detachable contact with the near-field front end and the near-field antenna.
- a plug socket for the connector of the connecting element is soldered onto the circuit board, and preferably there is a mechanical connection between the connector and the circuit board.
- a plug socket for the connector of the connecting element is soldered onto the circuit board, and preferably there is a mechanical connection between the connector and the circuit board.
- the connecting element has at least one soldering point at one end of the connecting line for permanent contact with the near-field front end or the near-field antenna.
- one soldering point can also be provided for each end of the connecting lines for permanent contact with the near-field front end and the near-field antenna, wherein the existing soldering points of the connecting lines are preferably provided with at least one mechanical strain relief.
- the connecting element may have at least one shield, in particular in the form of a metallic foil and/or a metallic (wire) grid (also called wire mesh), around the connecting lines.
- the shielding allows the external interference, such as inductive and capacitive coupling, to be significantly reduced on the connecting element, which enables reliable use of the device according to the invention.
- the shield is expediently connected to ground, in particular on one side.
- connecting lines from the connecting element are twisted together and form a twisted pair cable, whereby preferably 2 connecting lines, which are in particular twisted together, are provided with a shield.
- a 2-core, twisted cable (with or without shielding) is provided as a connecting element for connecting the near-field antenna. It goes without saying that the two wires or the two connecting lines are covered with an electrical insulation layer within the connecting element.
- Each connecting line of the connecting element can also have a cross-section between 0.25 and 1.00 mm 2 , preferably between 0.27 and 0.75 mm 2 and particularly preferably between 0.30 and 0.50 mm 2 in order to enable good, loss-free signal transmission.
- the connecting element has a length of between 25 and 125 cm, preferably between 25 and 95 cm, particularly preferably between 30 and 75 cm. This allows a significant distance to be achieved between the base unit and the near-field antenna unit. Nevertheless, it is recommended that the length of the connecting element be as short as possible in order to avoid unnecessary interference.
- At least one (first or second) housing is present in which the near-field front end or the near-field antenna is housed separately.
- at least the near-field front end and/or the near-field antenna can be encapsulated with potting compound in the respective housing in order to reliably avoid moisture problems and/or to reduce mechanical stress on the electrical components.
- at least part of the housing serves as a collecting tray for the potting compound, with all electrical components, including the circuit board and soldering points, ideally being completely covered by the potting compound.
- the (preferably first) housing is constructed in two parts with a housing cover and a housing base, wherein in particular the two housing parts, after the assembly of the electrical components and component groups inside the housing (and the encapsulation with encapsulation compound), are welded or glued together.
- This also prevents moisture or dirt from penetrating the housing and causing problems.
- Existing connector sockets can also be molded onto the housing.
- the housing is a plastic injection-molded part, which allows for a complex housing shape. Consequently, the connector sockets provided can be manufactured (or molded) directly with the respective housing part, which avoids sealing problems.
- holding means in particular in the form of clips, locking means, cable ties, adhesives, rivets and/or screw means, are arranged for fastening to the vehicle.
- the holding means mentioned allow the device to be fastened to the vehicle at least partially or in sections in a force-fitting, material-fitting and/or form-fitting manner.
- a combination of the holding means mentioned is also conceivable in order to achieve optimal and simple fastening.
- at least one holding means can be provided in the area of or on the near-field antenna and/or the connecting element, and/or preferably at least one holding means can be present on the housing, in particular directly molded on.
- the holding means can be molded on directly during production, just like the plug sockets.
- the holding means can be designed as tabs with through holes in order to enable simple screwing, riveting and/or connection, e.g. by means of cable ties, to the vehicle, in particular an inner door panel. It is also conceivable that the holding means themselves are provided with locking elements and/or adhesives (see, for example, Fig. 6, 7).
- the circuit board has an electromechanical layout for arranging the electrical components at least from the near-field front end, wherein the layout of the circuit board is designed in such a way that the layout is identical regardless of the individual components for adapting the antenna tuner to the respective near-field antenna unit, so that in particular the circuit board with its identical layout can also be used when using different components for adapting to the respective near-field antenna with the connecting element. Consequently, the (identically) designed circuit board with its identical layout can always be designed for all conceivable (component-specific) adaptations of the antenna tuner, so that the circuit board can be manufactured in series production. The antenna tuner is then adapted to the near-field antenna via the special Component selection with which the circuit board is then finally populated.
- SMD components with different electrical characteristics are used here, but which essentially have the same geometric size.
- the layout of the circuit board provides the corresponding soldering pads for the SMD components for the specific arrangement and attachment of the SMD components by soldering. This procedure can be made possible due to a special circuit design of the antenna turner.
- the antenna tuner should be adapted in advance to the two near-field antenna units to be used with their respective connecting elements. It is conceivable that at least the first ends of the two connecting elements are contacted with the near-field front end via a common connector.
- the near-field antenna is manufactured on a second circuit board using a photolithographic process. This allows the near-field antenna to be manufactured cost-effectively and always with the same electrical properties. This means that the number of components for series production can be further reduced.
- the near-field antenna it is also possible for the near-field antenna to be formed by at least a partial or complete loop of the connecting element, which is not shielded (and/or twisted) in the antenna area, with the loop in particular being held in the housing of the near-field antenna by at least one fixing means. These fixing means can protrude in rod form from the interior of the housing and be manufactured with the housing.
- the connecting line (as an antenna) is essentially looped through and then fed back. In this case, no separation of the connecting line is necessary, so that it is designed to be endless in the antenna area.
- a (conductive) surface which can also be produced photo-technically on the circuit board and is designed to be electrically conductive, can improve the transmission quality of the near-field antenna.
- the (conductive) surface can also be made of an electrically conductive film (with and without circuit board).
- At least one further component group is present, for example in the form of a voltage regulator, a protective circuit, a driver circuit, a control unit, an antenna control unit, an interface, an energy storage device and/or an A/D or DA converter. It is advantageous if the existing, further component groups are at least partially also arranged on the circuit board for the near-field front end.
- the voltage regulator can reduce the on-board voltage of the vehicle to the voltage preferably required (of approx. 5 V) for the near-field front end.
- the at least one protective circuit can protect the device against overvoltages and interference from the vehicle's on-board network.
- the protective circuit can also protect the vehicle's on-board network from interference from the device.
- the near-field front end can be operated as an NFC module, for example.
- the control unit can already carry out initial signal processing.
- the interface is used for communication between the device according to the invention and the vehicle communication network.
- the energy storage device can, for example, be used to absorb external energy from the mobile device.
- the device according to the invention can optionally have additional communication units, such as a UWB unit, LF and/or HF radio units and/or Bluetooth radio units.
- the device can also be used to control and evaluate connectable sensors, such as capacitive sensors, inductive sensors, proximity sensors, radar sensors.
- the contactless near-field data transmission takes place in the frequency range between 12.80 MHz and 14.2 MHz, preferably in the frequency range between 13.25 MHz and 13.75 MHz and particularly preferably in the frequency range around or at 13.56 MHz (standardized N FC data transmission) and at least the near-field antenna unit and/or the near-field front end is designed for this frequency range.
- a transmission rate (between mobile device and near-field antenna unit) of 106 kbit/s, 212 kbit/s or 424 kbit/s can be used, and/or preferably a maximum transmission range of 10 cm can be used. Due to the short The transmission range makes the entire near-field communication very secure against eavesdropping and attacks.
- the device is designed as an emergency unlocking device and preferably generates an emergency unlocking signal after a positive authentication and/or a positive code comparison of the mobile device. It is also possible that electrical energy can be transmitted from the external mobile device to the device, in particular via the near-field antenna.
- the base unit is preferably provided with an electrical energy storage device for this purpose in order to maintain the functionality in all cases.
- an access system according to the invention for a vehicle with at least one device according to the invention (as already described), wherein the base part of the device is connected to the vehicle-side control unit in terms of electrical, control technology and/or data technology, in particular via the interface and the plug, in order to trigger at least one emergency release function there.
- This enables an electromechanical lock to be actuated on a movable part of the vehicle, whereby the user can then gain access to the vehicle.
- the near-field antenna is arranged in the window area of a movable part, such as a door or hatch, of the vehicle, and/or wherein the near-field antenna is preferably arranged in the area of the B-pillar of the vehicle or on an outside mirror of the vehicle or a wing element on the movable part.
- the near-field antenna is easily accessible to the user and interference-free communication between the mobile device and the near-field antenna is possible. Since only the near-field antenna or the near-field antenna unit is arranged at these positions, the available space is usually sufficient.
- the base unit with the near-field front end with its housing is arranged in a dry area of the vehicle, preferably in the interior of the moving part. In this position, the base unit is well protected from external weather and interference influences. Furthermore, the near-field antenna unit with the connecting element can be attached to the vehicle at other positions using the holding means, as previously described.
- a further near-field antenna of the device can be present in the interior of the vehicle, preferably in the area of a storage area for the mobile device.
- the further near-field antenna can, for example, enable the engine management system to be released by the mobile device via the device according to the invention.
- the position of the mobile device in the vehicle can be detected particularly easily and data can be transmitted to the vehicle (preferably bidirectionally). It is also conceivable that a charging process for the mobile device can be achieved using the device according to the invention.
- Fig. 1 is a side view of a vehicle with the device according to the invention and the access system according to the invention
- Fig. 2 is a plan view of a comparable vehicle as in Fig. 1,
- Fig. 3 is a schematic view of a movable part, in the form of a door, of the vehicle with the device 10 according to the invention with a total of 2 near-field antenna units,
- FIG. 4 schematic view of a near-field antenna unit with a near-field antenna on a circuit board
- FIG. 5 comparable schematic near-field antenna unit to Figure 4, but with the near-field antenna designed as a loop of the connecting line
- Fig. 6 another schematic near-field antenna unit with a connecting element for electrically contacting the near-field front end and differently indicated holding means
- Fig. 7 exemplary holding means for the connecting element in side view, the connecting element being shown in cross section,
- Fig. 8 schematic view of a base unit with at least the near-field front end on a circuit board and further component groups
- Fig. 9 Cross section through the circuit board in the area of the near-field front end with a side view of a component in SMD form
- Fig. 10 schematic top view of a housing of the base unit with the near-field front end
- FIG. 11 schematic side view of a comparable base unit 11 in a housing with molded connector sockets
- Fig. 12 schematic representation of an optimized frequency response of a tuned near-field antenna
- FIG 1 shows a vehicle 100 with at least one device 10 according to the invention.
- This device 10 has at least two separate structural units, namely a base unit 11 and a near-field antenna unit 14. These two structural units 11, 14 are connected at least in terms of data and/or electronics via a connecting element 16.
- the base unit 11 is described in more detail in Figures 8 to 11.
- the near-field antenna unit 14 is shown in detail in Figures 4 to 7.
- the device 10 according to the invention is indicated in the area of the driver's door, which is also referred to as the movable part 101.
- the device 10 has the base unit 11, which is housed in the interior of the movable part 101, protected from the effects of the weather.
- the near-field antenna 15 of the near-field antenna unit 14 in the area of the B-pillar 103 is accessible to a user 200.
- the user 200 can advantageously control an existing access system 30 with his external mobile device 50, so that he is able to conveniently access the vehicle 100.
- the access system 30 according to the invention can now be controlled by the device 10 according to the invention in such a way that the external mobile radio device 50 communicates with the device 10 via a near-field data transmission 55 in order to generate an emergency unlocking of the access system 30.
- the user 200 must hold his external mobile radio device 50 as close as possible to the near-field antenna unit 14, whereby a minimum distance of 10 cm should not be exceeded.
- the device 10 When a minimum distance is reached between the mobile radio device 50 and the near-field antenna 15, the device 10 registers this approach and starts an authentication communication and/or a data exchange to an access code. If authentication is successful (with a corresponding access code), the device 10 according to the invention can generate a trigger signal, with which an electromechanical lock 105 on the movable part 101 is first unlocked and then opened. Thus, finally, access to the vehicle 100 is free for the user 200.
- the access system 30 according to the invention can, in addition to the device 10 according to the invention, also have a vehicle-side control unit 107 which can communicate data-technically via bus interfaces such as LIN, CAN and/or U-Art interfaces.
- the control unit 107 can be integrated as a separate unit or in a central control unit of the vehicle 100.
- the near-field antenna 15 should be as freely accessible as possible for the user 200. For this reason, the invention provides that the near-field antenna 15 is in the area of the B- Column 103 is arranged in the window area 102 of the movable part 101 and/or in the area of the exterior mirror 104.
- additional wing elements 106 are provided in the transition area from the window to the door panel on the movable part 101. These wing elements 106 can have further components of the access system 30 in order to enable automatic access to the vehicle 100.
- the wing elements 106 can be arranged in a fixed or retractable manner on the movable part 101.
- the base 111 is designed at a distance from the near-field antenna unit 14 with the near-field antenna 15.
- the two units 14 and 15 are electronically connected for data purposes by a connecting element 16, which is not shown in Figure 1. Since the near-field antenna 15 is connected to the near-field front end 12 by the connecting element 16, a corresponding antenna tuner 17 must be tuned to the entire near-field antenna unit 14 with the connecting element 16. For this purpose, the near-field front end 12 is designed to be electrically optimized accordingly.
- FIG 2 shows a comparable vehicle 100 in a top view from Figure 1.
- this vehicle 100 does not have the wing elements 106 on the moving parts. Instead, the arrangement or positioning of the near-field antenna unit 14 with the antenna 15 arranged therein on the vehicle 100 can be clearly seen.
- Figure 3 schematically shows a driver's door as a movable part 101 of the vehicle 100.
- the movable part 101 has the device 10 according to the invention in an exemplary embodiment.
- the device 10 is equipped with a total of 2 near-field antenna units 14, both of which are connected to exactly one near-field front end 12.
- the corresponding near-field front end 12 is coordinated for the use of the two near-field antennas 15.
- the two existing connecting elements 16 are also taken into account, since otherwise optimal operation of the device 10 for data exchange with the external mobile radio device 50 is not possible.
- the base unit 11 is structurally spaced apart from the near-field antenna unit 14 and is provided separately.
- the two connecting elements 16 each have a first end 16.1 and a second end 16.2.
- the first end 16.1 of the connecting element 16 is used for connection to the near-field front end 12 of the base unit 11.
- the second end 16.2 of the connecting element 16 leads to the near-field antenna unit 14 and is electrically connected to the near-field antenna 15 or even represents the near-field antenna 15 itself (see Figure 5).
- holding means 25 can be used in a force-fitting, material-fitting and/or form-fitting manner to fasten the near-field antenna unit 14 and the connecting element 16.
- the existing near-field antenna unit 14 which is arranged on the right of the base unit 11 in the window area 102 (near the B-pillar of the vehicle), serves the user 200 for the planned emergency release and is thus accessible from the outside of the vehicle 100.
- This near-field antenna 15 in the near-field antenna unit 14 can be used to easily check to what extent the main mobile radio device 50 of the user 200 is located in the vehicle 100, in order to be able to enable the engine management of the vehicle 100 to start the engine, for example. It is also conceivable that a charging process and/or data exchange with the external mobile radio device 50 is possible via the near-field antenna unit 14 in the interior of the vehicle 100.
- the near-field antenna 15 is shown schematically in different designs.
- the near-field antenna 15 is photo-technically mounted on a circuit board 15.1, in particular as a multiple loop 15.2.
- the contacting of the near-field antenna 15 is made by the two soldering points 19, which establish a connection to the two connecting lines 16.4 of the connecting element 16.
- the near-field antenna 15 is constructed with an enlarged surface in order to optimize data transmission to the external mobile radio device 50.
- the (conductive) surface 15.3 can also be made of an electrically conductive foil. In order to protect the near-field antenna 15 from external influences, it is recommended to encapsulate the electrical components with a casting compound in order to reduce external interference as much as possible. Ideally, the near-field antenna 15 with its circuit board 15.1 is housed in a second housing 21, which is structurally separate from the first housing 20 of the base unit 11.
- the near-field antenna 15 is not implemented by a circuit board 15.1, as in Figure 4, but by a loop 15.2 of the connecting line 16.4 from the connecting element 16 within the near-field antenna unit 14.
- the fixing means 22 for mechanically guiding the connecting line 16.4 can also be provided.
- these fixing means 22 are injected into the housing 21 of the near-field antenna unit 14.
- an electrically conductive surface 15.3 in the form of a metal foil can also be provided in Figure 5.
- Figure 6 shows the near-field antenna unit 14 with the near-field antenna 15 and the connecting element 16.
- the second end 16.2 of the connecting element 16 is connected to the near-field antenna 15 with a plug 23, in particular a second plug 23.2.
- the connecting element
- the connecting line 16 is designed as a two-wire twisted connecting line 16.4, in particular with an additional shield 16.3. Within the insulation 16.6, the two connecting lines 16.4 are twisted together so that the twisted area 16.5 is formed. By twisting the two connecting lines 16.4, electromagnetic interference can be compensated, which enables improved operation of the near-field antenna unit 14. At the first end 16.1 of the connecting element 16, the two connecting lines 16.4 are shown untwisted. These can either be connected via a plug 23, in particular only a first plug 23.1 be electrically connected to the base unit 11 or, without a connector 23, be connected directly to the near-field front end 12.
- FIG. 6 also shows exemplary holding means 25 for fastening the connecting element 16 to the vehicle 100.
- the left holding means 25 uses a locking means with a double arrowhead, with which the holding means 25 can be easily fastened or clipped onto bores or holes.
- the right holding means 25 has an adhesive surface (adhesive strip) arranged at the lower end of the holding means 25, with which the holding means 25 can be easily glued to an at least partially flat surface in the vehicle 100.
- at least one holding means 25 is also provided directly on the near-field antenna unit 14, which is indicated in Figure 6 as a receiving tab and is molded onto the housing 21.
- the holding means 25 on the housing can also be designed using clips, adhesives, screws or the like.
- FIG. 7 shows a schematic detail of a holding means 25 for the connecting element 16.
- the holding means 25 has an upper tubular region through which the connecting element 16 is held (positively).
- This tubular region can be designed in the form of a wire or a cable tie and is attached at a lower end to a holding plate which, for example, has a screw means or adhesive means or locking means.
- Figure 7 also shows the connecting element 16 in more detail in cross-section.
- the two connecting lines 16.4 are clearly shown inside, which can consist of copper strands or one copper wire each.
- the two connecting lines 16.4 are each surrounded by an insulating layer and can also be surrounded by another common insulating layer.
- a shield 16.3, in particular in the form of a wire mesh or an electrically conductive foil, can also be present in order to keep out electromagnetic interference.
- the shield 16.3 is also surrounded by an external insulation 16.6, which also protects the connecting line 16.4 from moisture.
- Figure 8 shows the base unit 11, which is designed with the near-field front end 12 on a circuit board 13. Furthermore, individual electronic components 13.1 are mounted on the Circuit board 13 is arranged. Within the scope of the present invention, the same layout of the circuit board 13 can always be used and nevertheless a component-specific adaptation of the antenna tuner 17 to the existing near-field antenna unit 14 with the corresponding connecting element 16 can take place.
- the antenna tuner 17 can have at least one adaptation circuit 17.1 and/or a filter circuit 17.2 in order to achieve adaptation to the existing near-field antenna unit 14.
- Figure 8 shows an example of a mirror-symmetrical (see horizontal mirror plane) filter circuit 17.2, which forms the first and second filter arrangements. With the help of the two mirror-symmetrical filter arrangements, the near-field front end 12 can be operated in a differential mode in order to achieve optimum performance.
- further component groups 18 in the form of a voltage regulator, a protective circuit, a driver circuit, a control unit, an antenna control unit, an interface and/or an AD/DA converter can also be present on the circuit board 13, whereby the use of the device 10 according to the invention is designed to be very individually adaptable.
- the existing connecting element 16 is electromechanically connected to the molded plug socket 24 of the base unit 11 via a first plug 23.1. The plug socket 24 is contacted via the two soldering points 19 with the circuit board 13.
- Figure 9 illustrates what is meant by the same layout of the circuit board 13.
- a resistor R1 is shown as an SMD component, which has two solder caps 13.1.a on the left and right sides.
- the SMD component is soldered onto the existing solder pads 13.2 of the circuit board 13 via these solder caps.
- These solder pads 13.2 are always arranged in the same place and at the same distance from one another (on the circuit board) and can nevertheless be used for different resistors, for example for the resistor R2, which is also designed as an SMD component.
- the antenna tuner 17 can now be set to the respective near-field antenna unit 14 independently of the components 13.1 used, so that one and the same layout of a circuit board 13 can always be used for many different applications. However, the special circuit of the antenna tuner 17 is advantageous for this.
- FIG 10 shows a top view of the housing 20 of the base unit 11.
- This housing 20 is designed in at least two parts with a housing cover 20.1 and a housing base 20.2, whereby the two housing parts 20.1 and 20.2 can be connected to one another in a materially and/or chemically bonded manner via a connecting seam 20.3.
- the near-field front end 12 with its other component groups 18 is then arranged within the first housing 20.
- An electrical and/or data connection can be made via the plug sockets 24, which are expediently formed with the housing 20.
- corresponding tabs can also be formed on the housing 20, which form two holding means 25. Two through holes are provided in the tabs, with which the housing 20 can then be connected to the vehicle 100 via plastic rivets, screws or cable ties or the like.
- the housing 20 is shown in a side view with a view of the plug sockets
- This housing 20 is a different design from the housing in Figure 10. Essentially, the holding means
- the circuit board 13 in the base unit 11 is shown purely schematically.
- the connecting seam 20.3, which can be designed as a weld seam or an adhesive seam, is also clearly visible in Figure 11.
- the two housing parts 20.1 and 20.2, which are connected to one another in a watertight manner, can also be clearly seen in Figure 11.
- Figure 12 shows the aforementioned frequency response schematically of the input current (see curve K1) and the antenna current (see curve K2) around the operating frequency (of 13.574 MHz).
- the input current is minimal in the range of the operating frequency of 13.56 MHz (or has a clear dip) and a broad plateau is advantageously formed in the range of the operating frequency for the antenna current.
- the frequency response shown can be achieved by the special circuit of the antenna tuner 17 in order to achieve particularly energy-saving operation with a very high performance of the near-field antenna 15. At the same time, this frequency response also enables particularly interference-resistant operation of the device 10 according to the invention.
- R1/R2 SMD component e.g. resistor
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023104318.8A DE102023104318A1 (de) | 2023-02-22 | 2023-02-22 | Kommunikations-Vorrichtung |
| DE102023104318.8 | 2023-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024175634A1 true WO2024175634A1 (de) | 2024-08-29 |
Family
ID=90038305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/054369 Ceased WO2024175634A1 (de) | 2023-02-22 | 2024-02-21 | Kommunikations-vorrichtung |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102023104318A1 (de) |
| WO (1) | WO2024175634A1 (de) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202870501U (zh) * | 2012-10-09 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | 一种基于nfc的汽车发动机起动控制系统 |
| US20160292560A1 (en) * | 2015-04-02 | 2016-10-06 | Mitsumi Electric Co., Ltd. | Antenna apparatus and wireless communication system |
| CN207332511U (zh) * | 2017-10-31 | 2018-05-08 | 美的智慧家居科技有限公司 | 门锁系统 |
| US20180276426A1 (en) * | 2017-03-22 | 2018-09-27 | Nxp B.V. | Nfc reader with remote antenna |
| EP3544197A1 (de) * | 2018-03-21 | 2019-09-25 | Huf Hülsbeck & Fürst GmbH & Co. KG | Vorrichtung zur kontaktlosen datenübertragung |
| EP3001561B1 (de) | 2014-09-25 | 2019-10-09 | Huf Hülsbeck & Fürst GmbH & Co. KG | Antennenschaltung für nahfeld-antennen |
| EP3621209A1 (de) * | 2018-09-04 | 2020-03-11 | Continental Automotive GmbH | System zur ansteuerung einer nfc-antenne und einer led |
-
2023
- 2023-02-22 DE DE102023104318.8A patent/DE102023104318A1/de active Pending
-
2024
- 2024-02-21 WO PCT/EP2024/054369 patent/WO2024175634A1/de not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202870501U (zh) * | 2012-10-09 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | 一种基于nfc的汽车发动机起动控制系统 |
| EP3001561B1 (de) | 2014-09-25 | 2019-10-09 | Huf Hülsbeck & Fürst GmbH & Co. KG | Antennenschaltung für nahfeld-antennen |
| US20160292560A1 (en) * | 2015-04-02 | 2016-10-06 | Mitsumi Electric Co., Ltd. | Antenna apparatus and wireless communication system |
| US20180276426A1 (en) * | 2017-03-22 | 2018-09-27 | Nxp B.V. | Nfc reader with remote antenna |
| CN207332511U (zh) * | 2017-10-31 | 2018-05-08 | 美的智慧家居科技有限公司 | 门锁系统 |
| EP3544197A1 (de) * | 2018-03-21 | 2019-09-25 | Huf Hülsbeck & Fürst GmbH & Co. KG | Vorrichtung zur kontaktlosen datenübertragung |
| EP3621209A1 (de) * | 2018-09-04 | 2020-03-11 | Continental Automotive GmbH | System zur ansteuerung einer nfc-antenne und einer led |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023104318A1 (de) | 2024-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102011086609B4 (de) | Antenneneinheit und Türgriffeinrichtung mit derselben | |
| EP3192126B1 (de) | Antennenmodul | |
| DE102012100428A1 (de) | Türgriff für ein Kraftfahrzeug | |
| EP1854168B1 (de) | Folienantenne für ein fahrzeug | |
| DE102017201245A1 (de) | Elektrisches System für ein Fahrzeug | |
| DE102012016862A1 (de) | Fahrzeugkamera mit integrierter HF-Antenne und Kraftfahrzeug | |
| DE102014000294A1 (de) | Seitentürschloss für ein Kraftfahrzeug | |
| DE60210196T2 (de) | Türgriff ausgerüstet mit einem kapazitiven Anwesenheitsdetektor | |
| EP1398434B1 (de) | Türgriffanordnung für eine Kraftfahrzeugtür | |
| EP1447878A1 (de) | Antenne für eine Funkzentralverriegelung | |
| WO2024175634A1 (de) | Kommunikations-vorrichtung | |
| DE10331213B4 (de) | Scheibenantenne für den LMK- und diversitären FM-Empfang mobiler Kraftfahrzeuge | |
| EP1698019B1 (de) | Fahrzeugscheibenantenne | |
| DE102018209121A1 (de) | Abschirmelement und Energieübertragungseinheit | |
| DE102015119476A1 (de) | Fahrzeugtürgriff mit Antennenanordnung | |
| EP0711091A1 (de) | Funkfernsteuereinrichtung | |
| EP1483768B1 (de) | Fernsteuerbares gerät, insbesondere fernsteuerbare zentralverriegelung für kraftfahrzeuge | |
| DE102021213963A1 (de) | Vorbaugruppe für eine Batterie sowie Batterie | |
| EP1280390A2 (de) | Elektronischer Schlüssel für Fahrzeuge | |
| DE102006025081B4 (de) | Antennen-Elektronikmodulträger, sowie Antennenmodul und Antennen-Locksensormodul | |
| WO2007009509A1 (de) | Elektronisches gerät für ein fahrzeug mit einer direkt kontaktierten leiterplatte | |
| DE19923706A1 (de) | Vorrichtung zur Herstellung einer elektrischen Verbindung zwischen einem beweglichen Fahrzeugteil und einem weiteren Fahrzeugteil | |
| EP1682386A1 (de) | Verfahren zur befestigung von flachbandkabelsystemen | |
| DE60221532T2 (de) | Identifikationsvorrichtung für ein kraftfahrzeug | |
| WO2017042096A1 (de) | Sender- und/oder empfängereinheit einer optischen messvorrichtung und opti-sche messvorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24706990 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024706990 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024706990 Country of ref document: EP Effective date: 20250922 |
|
| ENP | Entry into the national phase |
Ref document number: 2024706990 Country of ref document: EP Effective date: 20250922 |